//
// SequenceType.swift
//
// Copyright (c) 2015-2019 Damien (http://delba.io)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
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//
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// SOFTWARE.
//

/// Conforming types gain access to reduce, map, filter et al.
extension JSON: Sequence {
    /**
        The required method to conform to the SequenceType protocol.

        - returns: a generator over the elements of arrayValue converted to JSON
    */
    public func makeIterator() -> AnyIterator<JSON> {
        guard let array = nsArray else {
            return AnyIterator { nil }
        }

        var index = 0

        return AnyIterator {
            guard let object = array[safe: index] else { return nil }

            index += 1

            return JSON(object)
        }
    }
}
